Masonry, brick and concrete walls have very low thermal values. Thermal mass is the capacity of a material to absorb heat energy. A lot of energy is required to change the temperature of high density materials like concrete, bricks and tiles. Masonry and brick are very good at storing heat but are also very good at transferring heat. Often bricks and masonry will heat up during the day, store that heat and then radiate it back into the house at night. Properly installed insulation can limit this transfer and dramatically improve energy efficiency. By placing insulation in a walling system it is beneficial in slowing the transfer of extreme heat and cold by acting as a temperature barrier that slowly releases the stored temperature over an extended period. The temperature within the house/building will result in a stable and comfortable range, which reduces the cost of heating and cooling the building. A high energy efficient buildings save you money.
A double brick cavity wall has an R-value of only R0.69. In comparison just 30mm of Foamular Extruded Polystyrene has an R-value of R1.07. Combining the two would provide an R-Value of 1.76 and vastly improve the walls thermal performance.
To meet BCA and BASIX requirements, Foamular XPS in various thicknesses can be easily fitted to meet thermal requirements.
Foamular Extruded Polystyrene is closed celled insulation, so it is not affected by moisture. It can reduce the transfer of moisture and is its physical properties are not reduced in the presence of moisture.
As a result of its reduced moisture absorption, it is guaranteed to maintain 90% of its thermal properties for 20 years.
Contact Austech External Building Products or visit www.foamular.com.au for more information.